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公开(公告)号：US20170274347A1
公开(公告)日：2017-09-28
申请号：US15462984
申请日：2017-03-20
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Akira MORIKAWA , Yoshihiro GOTO , Toshitaka TANABE , Masahide MIURA , Hiromasa SUZUKI
CPC classification number: B01J20/06 , B01D53/94 , B01J20/3078 , B01J20/3085 , B01J23/10 , C01F17/0043 , C01G25/02 , C01P2004/61 , C01P2004/82
Abstract: An oxygen storage material comprises three pyrochlore-type composite oxides which are a ceria-zirconia composite oxide, a lanthana-zirconia composite oxide, and a ceria-zirconia-lanthana composite oxide, and which coexist together, wherein the oxygen storage material contains: first secondary particles made of the pyrochlore-type ceria-zirconia composite oxide and the pyrochlore-type ceria-zirconia-lanthana composite oxide; and second secondary particles made of the pyrochlore-type lanthana-zirconia composite oxide and the pyrochlore-type ceria-zirconia-lanthana composite oxide.
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公开(公告)号：US20180264409A1
公开(公告)日：2018-09-20
申请号：US15534805
申请日：2015-12-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , CATALER CORPORATION
Inventor： Hiromasa SUZUKI , Takeru YOSHIDA , Masahide MIURA , Isao CHINZEI , Mitsuyoshi OKADA , Toshitaka TANABE , Akihiko SUDA , Hirotaka ORI , Akiya CHIBA , Kosuke IIZUKA , Akira MORIKAWA
IPC: B01D53/94 , B01J37/02 , B01J37/03 , C04B35/488
CPC classification number: B01D53/945 , B01D2255/1021 , B01D2255/1025 , B01D2255/2061 , B01D2255/2063 , B01D2255/2066 , B01D2255/40 , B01D2255/407 , B01D2255/9032 , B01D2255/908 , B01D2255/9207 , B01D2258/012 , B01J23/002 , B01J23/63 , B01J35/0006 , B01J35/002 , B01J35/023 , B01J37/0201 , B01J37/0244 , B01J37/0248 , B01J37/03 , B01J37/038 , C01F17/0043 , C01G25/02 , C01P2002/50 , C01P2002/54 , C04B35/488 , C04B35/6261 , C04B2235/3224 , C04B2235/3229 , C04B2235/3244 , C04B2235/443 , C04B2235/5436 , C04B2235/604 , C04B2235/664 , C04B2235/76 , Y02T10/22
Abstract: The object of the present invention is to provide a high-performance exhaust gas purifying catalyst that can achieve oxygen absorption/release capacity and NOx purification performance. The object is solved by an exhaust gas purifying catalyst, which comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure in the upstream part of the catalyst coating layer, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % of the total cation amount, and has a molar ratio of (cerium+the additional element):(zirconium) of 43:57 to 48:52.
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公开(公告)号：US20160214092A1
公开(公告)日：2016-07-28
申请号：US14916862
申请日：2014-09-03
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masahide MIURA , Tetsuhiro HIRAO , Tadashi SUZUKI , Toshitaka TANABE
IPC: B01J23/89
CPC classification number: B01J23/894 , B01D53/945 , B01D2255/2061 , B01D2255/2063 , B01D2255/20715 , B01D2255/20738 , B01D2255/40 , B01D2255/908 , B01J23/002 , B01J37/0234 , B01J37/036 , B01J2523/00 , Y02A50/2324 , Y02T10/22 , B01J2523/36 , B01J2523/3706 , B01J2523/48 , B01J2523/842 , B01J2523/31 , B01J2523/3712 , B01J2523/824
Abstract: An exhaust gas purification catalyst having a base and a catalytic coating layer formed thereon includes an alumina support, a platinum-group metal, an iron oxide-zirconia-based composite oxide, and a lanthanoid oxide in the same catalytic coating layer.
Abstract translation: 形成有碱和催化涂层的废气净化催化剂在同一催化涂层中包括氧化铝载体，铂族金属，氧化铁 - 氧化锆 - 基复合氧化物和镧系氧化物。
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公开(公告)号：US20170282123A1
公开(公告)日：2017-10-05
申请号：US15468956
申请日：2017-03-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Naoki KUMATANI , Toshitaka TANABE , Akira MORIKAWA , Masahide MIURA , Hiromasa SUZUKI
CPC classification number: B01D53/9413 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/908 , B01D2255/9202 , B01D2255/9207 , B01J23/10 , B01J23/63 , B01J35/0006 , B01J35/002 , B01J35/0073 , B01J37/0009 , B01J37/0036 , B01J37/0201 , B01J37/0215 , B01J37/0244 , B01J37/0248 , B01J37/03 , B01J37/08 , B01J37/14 , B01J37/16 , B01J2523/00 , B01J2523/31 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/824 , B01J2523/3718 , B01J2523/822
Abstract: A core-shell oxide material comprises: a core which comprises a ceria-zirconia based solid solution powder having at least one ordered phase of a pyrochlore phase and a κ phase; and a shell which comprises an alumina based oxide disposed on at least a portion of a surface of the core.
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公开(公告)号：US20180243728A1
公开(公告)日：2018-08-30
申请号：US15553020
申请日：2016-02-17
Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO , TOYOTA JIDOSHA KABUSHIKI KAISHA , CATALER CORPORATION
Inventor： Satoru KATOH , Toshitaka TANABE , Masahide MIURA , Hiromasa SUZUKI , Hiroaki NAITO , Hirotaka ORI , Keiichi NARITA , Michihiko TAKEUCHI , Tatsuya OHASHI
CPC classification number: B01J23/63 , B01D53/94 , B01D2255/1021 , B01D2255/407 , B01D2255/9202 , B01J35/023 , B01J35/026 , B01J35/04 , B01J35/10 , B01J35/1076 , B01J35/108 , B01J37/0018 , B01J37/0036 , B01J37/0219 , B01J37/0234 , B01J37/08 , F01N3/28 , F01N2330/02 , F01N2330/06 , F01N2510/068
Abstract: A catalyst for purification of exhaust gas, wherein a substrate and a catalyst coat layer which is formed on a surface of the substrate and which comprises catalyst particles, wherein the catalyst coat layer has an average thickness in a range of 25 to 160 μm, and a void fraction in a range of 50 to 80% by volume as measured by a weight-in-water method, 0.5 to 50% by volume of all voids in the catalyst coat layer consist of high-aspect ratio pores which have equivalent circle diameters in a range of 2 to 50 μm in a cross-sectional image of a cross-section of the catalyst coat layer which the cross-section is perpendicular to a flow direction of exhaust gas in the substrate, and which have aspect ratios of 5 or higher, and the high-aspect ratio pores have an average aspect ratio in a range of 10 to 50.
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Patent Agency Ranking
公开(公告)号：US20160279620A1
公开(公告)日：2016-09-29
申请号：US15035659
申请日：2014-11-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masahide MIURA , Isao CHINZEI , Tetsuhiro HIRAO , Tadashi SUZUKI , Toshitaka TANABE
CPC classification number: B01J23/894 , B01D53/945 , B01D2255/1023 , B01D2255/1025 , B01D2255/2063 , B01D2255/20715 , B01D2255/20738 , B01D2255/2092 , B01D2255/407 , B01D2255/9022 , B01D2255/9032 , B01J23/464 , B01J23/63 , B01J35/0006 , B01J35/0073 , Y02T10/22
Abstract: Provided is an exhaust gas control catalyst including: a substrate (21); and a catalyst layer (22) that is arranged on the substrate, in which the catalyst layer (22) includes a palladium region (23) that contains palladium, aluminum oxide, ceria-zirconia solid solution, and a composite oxide of lanthanum, iron, and zirconium, and a rhodium region (24) that is arranged adjacent to the palladium region along a plane direction of the catalyst layer and contains rhodium, aluminum oxide, and ceria-zirconia solid solution.
Abstract translation: 提供一种排气控制催化剂，包括：基材（21）; 和布置在基板上的催化剂层（22），其中催化剂层（22）包括含有钯，氧化铝，二氧化铈 - 氧化锆固体的钯区（23）和镧，铁的复合氧化物 和锆，以及沿催化剂层的平面方向配置在钯区附近并含有铑，氧化铝和二氧化铈 - 氧化锆固溶体的铑区（24）。
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公开(公告)号：US20180250657A1
公开(公告)日：2018-09-06
申请号：US15974060
申请日：2018-05-08
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , CATALER CORPORATION
Inventor： Akira MORIKAWA , Kae KONISHI , Toshitaka TANABE , Akihiko SUDA , Masahide MIURA , Isao CHINZEI , Hiromasa SUZUKI , Akiya CHIBA , Kosuke IIZUKA
IPC: B01J23/10 , C04B35/50 , C01G25/00 , C04B35/626 , B01J23/00 , B01J23/63 , B01J35/00 , B01J35/02 , B01J37/00 , B01D53/94 , B01J37/03 , C04B35/488 , B01J37/12 , B01J37/14 , B01J37/16 , B01J37/08
CPC classification number: B01J23/10 , B01D53/94 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/63 , B01J35/002 , B01J35/023 , B01J37/0009 , B01J37/0036 , B01J37/0063 , B01J37/03 , B01J37/08 , B01J37/12 , B01J37/14 , B01J37/16 , C01G25/00 , C01P2002/36 , C01P2002/50 , C01P2002/72 , C01P2006/12 , C04B35/488 , C04B35/50 , C04B35/6261 , C04B35/6265 , C04B2235/3229 , C04B2235/3244 , C04B2235/443 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/661 , C04B2235/664 , C04B2235/76 , C04B2235/80
Abstract: A ceria-zirconia-based composite oxide containing a composite oxide of ceria and zirconia is provided, in which primary particles having a particle diameter of 1.5 to 4.5 μm account for, on a particle number basis, at least 50% of all primary particles in the ceria-zirconia-based composite oxide, and the molar ratio of cerium to zirconium in the ceria-zirconia-based composite oxide is between 43:57 and 55:45.
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公开(公告)号：US20180021758A1
公开(公告)日：2018-01-25
申请号：US15550148
申请日：2016-03-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Naoki KUMATANI , Toshitaka TANABE , Masahide MIURA
CPC classification number: B01J23/63 , B01D53/94 , B01D53/9413 , B01D53/9422 , B01D2255/10 , B01D2255/1025 , B01D2255/206 , B01D2255/2061 , B01D2255/2063 , B01D2255/2066 , B01D2255/2068 , B01D2255/20715 , B01D2255/407 , B01D2255/9022 , B01D2255/908 , B01D2257/502 , B01D2257/702 , B01J21/066 , B01J23/464 , B01J35/008 , B01J35/02 , B01J37/0215 , B01J37/0244 , C01F17/0043 , C01G25/00 , C01G25/006 , C01G25/02 , C01P2002/36 , C01P2004/84
Abstract: A core-shell support, comprising: a core which comprises at least one oxygen storage/release material selected from the group consisting of ceria-zirconia based solid solutions and alumina-doped ceria-zirconia based solid solutions; and a shell which comprises a rare earth-zirconia based composite oxide represented by a composition formula: (Re1-xCex)2Zr2O7+x (where Re represents a rare earth element, and x represents a number of 0.0 to 0.8) and with which an outside of the core is coated, the rare earth-zirconia based composite oxide comprising crystal particles having a pyrochlore structure, and the rare earth-zirconia based composite oxide having an average crystallite diameter of 3 to 9 nm.
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9.发明申请CERIA-ZIRCONIA COMPOSITE OXIDE, METHOD FOR PRODUCING THE SAME, AND CATALYST FOR PURIFYING EXHAUST GAS USING THE CERIA-ZIRCONIA COMPOSITE OXIDE 审中-公开CERIA-ZIRCONIA复合氧化物，其制造方法和使用CERIA-ZIRCONIA复合氧化物净化排气的催化剂公开(公告)号：US20160250620A1
公开(公告)日：2016-09-01
申请号：US15026760
申请日：2014-10-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , CATALER CORPORATION
Inventor： Akira MORIKAWA , Kae KONISHI , Toshitaka TANABE , Akihiko SUDA , Masahide MIURA , Isao CHINZEI , Hiromasa SUZUKI , Akiya CHIBA , Kosuke IIZUKA
CPC classification number: B01J23/10 , B01D53/9445 , B01D2255/2063 , B01D2255/407 , B01D2255/908 , B01J23/002 , B01J23/63 , B01J23/66 , B01J35/002 , B01J35/023 , B01J37/0036 , B01J37/0063 , B01J37/02 , B01J37/0201 , B01J37/03 , B01J37/04 , B01J37/08 , B01J2523/00 , C01F17/0018 , C01G25/00 , C01P2002/36 , C01P2002/50 , C01P2002/74 , C01P2002/85 , C01P2004/04 , C01P2004/61 , C01P2004/64 , C01P2006/12 , C01P2006/37 , C04B35/488 , C04B35/6261 , C04B35/6265 , C04B35/62655 , C04B35/62685 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3244 , C04B2235/443 , C04B2235/5436 , C04B2235/549 , C04B2235/604 , C04B2235/652 , C04B2235/656 , C04B2235/6567 , C04B2235/75 , C04B2235/76 , C04B2235/762 , Y02T10/22 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/36 , B01J2523/3718 , B01J2523/842 , B01J2523/31 , B01J2523/824
Abstract: A ceria-zirconia composite oxide includes at least one of lanthanum, yttrium, and praseodymium. A rate of a total content of the at least one rare earth element to a total content of cerium and zirconium is 0.1 at % to 4.0 at %. A content of the rare earth element present in near-surface regions, which are at a distance of less than 50 nm from surfaces of primary particles of the ceria-zirconia composite oxide, accounts for 90 at % or more of the total content of the rare earth element. An average particle size of the primary particles of the ceria-zirconia composite oxide is 2.2 μm to 4.5 μm. After a predetermined durability test, the intensity ratio I(14/29) of a diffraction line at 2θ=14.5° to a diffraction line at 2θ=29° and the intensity ratio I(28/29) of a diffraction line at 2θ=28.5° to the diffraction line at 2θ=29° respectively satisfy the following conditions: I(14/29)≧0.02, and I(28/29)≦0.08.
Abstract translation: 二氧化铈 - 氧化锆复合氧化物包括镧，钇和镨中的至少一种。 至少一种稀土元素的总含量与铈和锆的总含量的比率为0.1原子％至4.0原子％。 存在于距二氧化铈 - 氧化锆复合氧化物的一次粒子的表面小于50nm的近表面区域中的稀土元素的含量为90质量％以上 稀土元素 二氧化铈 - 氧化锆复合氧化物的一次粒子的平均粒径为2.2μm〜4.5μm。 在预定的耐久性试验之后，在2θ= 14.5°处的衍射线与2θ= 29°的衍射线的强度比I（14/29）和在2θ= 2°时的衍射线的强度比I（28/29） 在2θ= 29°时的衍射线分别满足28.5°的条件：I（14/29）≥0.02，I（28/29）≤0.08。
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10.发明申请CERIA-ZIRCONIA-BASED COMPOSITE OXIDE AND METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION CATALYST INCLUDING CERIA-ZIRCONIA-BASED COMPOSITE OXIDE 审中-公开基于CERIA-ZIRCONIA的氧化复合氧化物及其生产方法，以及包括基于CERA-ZIRCONIA的复合氧化物的排气净化催化剂公开(公告)号：US20160184801A1
公开(公告)日：2016-06-30
申请号：US14910378
申请日：2014-08-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , CATALER CORPORATION
Inventor： Akira MORIKAWA , Kae KONISHI , Toshitaka TANABE , Akihiko SUDA , Masahide MIURA , Isao CHINZEI , Hiromasa SUZUKI , Akiya CHIBA , Kosuke IIZUKA
CPC classification number: B01J23/10 , B01D53/94 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/63 , B01J35/002 , B01J35/023 , B01J37/0009 , B01J37/0036 , B01J37/0063 , B01J37/03 , B01J37/08 , B01J37/12 , B01J37/14 , B01J37/16 , C01G25/00 , C01P2002/36 , C01P2002/50 , C01P2002/72 , C01P2006/12 , C04B35/488 , C04B35/50 , C04B35/6261 , C04B35/6265 , C04B2235/3229 , C04B2235/3244 , C04B2235/443 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/661 , C04B2235/664 , C04B2235/76 , C04B2235/80
Abstract: A ceria-zirconia-based composite oxide containing a composite oxide of ceria and zirconia is provided, in which primary particles having a particle diameter of 1.5 to 4.5 μm account for, on a particle number basis, at least 50% of all primary particles in the ceria-zirconia-based composite oxide, and the molar ratio of cerium to zirconium in the ceria-zirconia-based composite oxide is between 43:57 and 55:45.
Abstract translation: 提供了含有二氧化铈和氧化锆复合氧化物的二氧化铈 - 氧化锆系复合氧化物，其中粒径为1.5〜4.5μm的一次粒子以粒子数计算为所有初级粒子的至少50％ 二氧化铈 - 氧化锆系复合氧化物，二氧化铈 - 氧化锆类复合氧化物中的铈与锆的摩尔比为43:57〜55:45。
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